CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenue	$ 30,818,746	$ 16,858,386
Cost of sales	25,898,658	16,705,403
Gross profit	4,920,088	152,983
Selling, general and administrative expenses	3,390,806	3,093,090
Income (loss) from operations	1,529,282	(2,940,107)
Interest expense	294,489	416,670
Income (loss) before provision for income taxes	1,234,793	(3,356,777)
Provision for income taxes	2,250	578
Net income (loss)	$ 1,232,543	$ (3,357,355)
Income (loss) per common share – basic	$ 0.10	$ (0.29)
Income (loss) per common share – diluted	$ 0.10	$ (0.29)
Shares used in computing income (loss) per common share:
Basic	11,983,270	11,837,014
Diluted	12,084,901	11,837,014